Home / 497,143.32-686,059.74-270,786.84

Finding the Fourth Proportional to 497,143.32, 686,059.74 and 270,786.84

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Solution

The fourth proportional to 497,143.32, 686,059.74 and 270,786.84 is: 373,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,143.32 : 686,059.74 = 270,786.84 : x
  2. Step 2: Convert to fraction form
    497,143.32/686,059.74 = 270,786.84/x
  3. Step 3: Cross multiply
    497,143.32x = 686,059.74 × 270,786.84
  4. Step 4: Simplify right side
    497,143.32x = 185,775,949,045.82
  5. Step 5: Solve for x
    x = 185,775,949,045.82/497,143.32
  6. Step 6: Final answer
    x = 373,686.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.